Results 21 to 30 of about 17,215 (182)

Incorporation of calcium in glasses: A key to understand the vitrification of sewage sludge

open access: yesInternational Journal of Applied Glass Science, Volume 12, Issue 3, Page 367-380, July 2021., 2021
Abstract The quantity of sewage sludge generated daily by wastewater treatment plants represents a major environmental problem and a financial burden for plant operators. Valorization strategies focusing on reusing sewage sludge as a raw material are currently developed.
Mariona Tarrago   +4 more
wiley   +1 more source

Effects of the type of facade on the energy performance of office buildings representative of the city of Barcelona

open access: yesAin Shams Engineering Journal, 2018
The aim of this article is to analyze the energy efficiency issues of eight office buildings built in Barcelona. Using computer simulations to compare energy demand and level of indoor natural lighting, it is demonstrated that there are considerable ...
C. Planas, E. Cuerva, P. Alavedra
doaj   +1 more source

A Comparison of Power Conversion Systems for Modular Battery-Based Energy Storage Systems

open access: yesIEEE Access, 2020
A modular battery-based energy storage system is composed by several battery packs distributed among different modules or parts of a power conversion system (PCS). The design of such PCS can be diverse attending to different criteria such as reliability,
Francisco Diaz-Gonzalez   +4 more
doaj   +1 more source

Urban seismic risk index for Medellín, Colombia, based on probabilistic loss and casualties estimations [PDF]

open access: yes, 2016
The final publication is available at Springer via http://dx.doi.org/10.1007/s11069-015-2056-4Medellín is the second largest city of Colombia with more than 2 million inhabitants according to the latest census and with more than 240,000 public and ...
Barbat Barbat, Horia Alejandro   +5 more
core   +2 more sources

Aportaciones al m-learning mediante Twitter

open access: yesRevista d'Innovació Docent Universitària, 2016
Se hace una revisión de algunas de las actividades que se pueden hacer con el aprendizaje mediante teléfonos móviles inteligentes (smartphones) utilizando, concretamente, la red social Twitter, así como una visión de lo que es y ha sido Twitter ...
Joan Domingo Peña   +1 more
doaj   +1 more source

Analytical Dead-Band Compensation for ZCS Modulation Applied to Hybrid Si-SiC Dual Active Bridge

open access: yesIEEE Access, 2020
This paper proposes a triangular modulation with zero current switching (ZCS) for a hybrid Si-SiC isolated bidirectional DC-DC converter (IBDC). Three of the four legs in the IBDC operate at ZCS and use Si IGBTs, while the fourth operates at zero voltage
Macia Capo-Lliteras   +4 more
doaj   +1 more source

Scale-Free Random SAT Instances

open access: yesAlgorithms, 2022
We focus on the random generation of SAT instances that have properties similar to real-world instances. It is known that many industrial instances, even with a great number of variables, can be solved by a clever solver in a reasonable amount of time ...
Carlos Ansótegui    +2 more
doaj   +1 more source

Simulació d'un procés industrial de cristallització de clorur de sodi (NaCl) i aplicacions

open access: yes@tic: Revista d'Innovació Educativa, 2014
La cristal·lització a partir de dissolucions és important industrialment  donada la gran varietat de substàncies que es comercialitzen  cristal·litzades.
Josefina Renedo Omaechevarría   +2 more
doaj   +1 more source

Solution-Processed Small Molecule Inverted Solar Cells: Impact of Electron Transport Layers

open access: yesIEEE Journal of the Electron Devices Society, 2022
In this work, the use of poly [(9,9-bis (30- (N,N-dimethylamino) propyl) -2,7-fluorene) -alt-2,7- (9,9-dioctylfluorene) (PFN) as electron transport layer (ETL) in inverted small molecule solar cells (SM-iOSCs) is analyzed.
Magaly Ramirez-Como   +6 more
doaj   +1 more source

Comparing observed damages and losses with modelled ones using a probabilistic approach: the Lorca 2011 case [PDF]

open access: yes, 2016
A loss and damage assessment was performed for the buildings of Lorca, Spain, considering an earthquake hazard scenario with similar characteristics to those of a real event which occurred on May 11th, 2011, in terms of epicentre, depth and magnitude ...
Barbat Barbat, Horia Alejandro   +3 more
core   +2 more sources

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